Location History:
- Tokyo, JP (2000)
- Yokohama, JP (2011 - 2016)
- Chiyoda-ku, JP (2015 - 2018)
Company Filing History:
18 out of 4,715 
2 out of 986 
1 out of 5,290 
Years Active: 2000-2018
Title: Innovations of Tamami Maruyama: Pioneering Dual Antenna Systems and Reflectarrays
Introduction
Tamami Maruyama, an accomplished inventor based in Yokohama, Japan, holds an impressive portfolio of 19 patents in the field of antenna technology and wave reflection systems. His work has significantly contributed to advancements in telecommunications and signal processing.
Latest Patents
Maruyama's latest patents highlight his innovative approaches to antenna design. One notable invention is the **Dual Antenna System**, which features a receiving antenna with a first surface orthogonal to an incident wave and a transmitting antenna that includes a second surface parallel to the reflection direction. This unique configuration allows for shared structural elements between the antennas, enhancing functionality and efficiency.
Another groundbreaking patent is the **Reflectarray**, which is designed to reflect an incident wave in a desired direction. This system consists of multiple elements arranged in both a primary and secondary direction. The elements are engineered to ensure that the phase of a reflected wave from one element varies predictably in relation to its adjacent elements. This reflects a sophisticated design that takes advantage of variations in gap sizes between patches for optimal performance at spurious resonance frequencies.
Career Highlights
Tamami Maruyama has built a robust career working with leading companies and institutions. He has made substantial contributions during his tenure at NTT Docomo, Inc. and Tohoku University. His efforts in research and development have strengthened the bridge between theoretical concepts and practical applications in communications technology.
Collaborations
Throughout his career, Maruyama has collaborated with several distinguished professionals, including Yasuhiro Oda and Jiyun Shen. These partnerships have led to significant advancements and new methodologies in their respective fields.
Conclusion
Tamami Maruyama's innovations in dual antenna systems and reflectarrays represent a vital part of the evolving landscape of antenna technology. With his 19 patents, he is not only a key inventor in Japan but also a significant contributor to global advancements in the field. His collaborative spirit and dedication to innovation continue to inspire new research and applications.